﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ExampleClass
{
    class Rectangle
    {
        int width;
        int height;
        public Rectangle(int a, int b)
        {
            width = a;
            height = b;
        }
        public int area()
        {
            return (width * height);
        }
    }
        class Program { 
            static void Main(string[] args)
            {
                Rectangle recta = new Rectangle(3,4);
                Rectangle rectb = new Rectangle(5,6);
                recta= rectb;
                Console.WriteLine("recta:{0}",recta.area());
                Console.WriteLine("rectb:{0}",rectb.area());

            }
    }
}
